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  • Copper-catalyzed [4 + 1] cycloadditions of alpha,beta-acetylenic ketones with diazoacetates to form trisubstituted furans.

Copper-catalyzed [4 + 1] cycloadditions of alpha,beta-acetylenic ketones with diazoacetates to form trisubstituted furans.

The Journal of organic chemistry (2007-11-29)
Lian-Biao Zhao, Zheng-Hui Guan, Yao Han, Yong-Xin Xie, Sheng He, Yong-Min Liang
摘要

Copper-catalyzed [4 + 1] cycloaddition reaction of alpha,beta-acetylenic ketones with alpha-diazo esters offers an efficient, direct route to highly substituted furans. The reaction conditions and the scope of the process are examined, and a possible mechanism is proposed.

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Sigma-Aldrich
重氮乙酸乙酯, contains ≥13 wt. % dichloromethane